Tamerlan Born News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Something with nothing. they prudently said, well, there's nothing to see here at this point. now, remember, he then left and traveled and came back. now that's a different place. they had no further information indicating that until, of course, after the event itself. that's important to do, but i think they were very prudent and very thorough by my review of what happened prior to his travel. >> pete williams, it's important to underscore what was underscored to me by intelligence officials, federal officials the last couple of days, talking about what they call an american person. the young...

Important. and it would lead one to believe that's probably where he got that final radicalization to push him to commit acts of violence and where he may have received training on what we ultima ultimately saw last monday. >> as i get michael leiter and michael chertoff into this, he talked about a change that he noticed in tamerlan once he returned from that travel. let me play a portion of that. >> i saw what happened the last time i spoke with tamerlan in 2009, and i was shocked when i heard his words, his phrases. every other word he starts sticking in words of devotion. it wasn't devotio...

And so you can't ask them to do something with nothing. they prudently said, well, there's nothing to see here at this point. now, remember, he then left and traveled and came back. now that's a different place. they had no further information indicating that until, of course, after the event itself. that's important to do, but i think they were very prudent and very thorough by my review of what happened prior to his travel. >> pete williams, it's important to underscore what was underscored to me by intelligence officials, federal officials the last couple of days, talking about what they ca...

Story of people who have lived here for a long time become radicalized and it regrettably isn't. in the times square bombing we had a case where someone had lived here for 13 years, had an mba, had worked for an american company, and then tried it bomb times square. the challenge here, david, there are lts and lots of people who go through these crises and become more radicalized but very, very few of them actually become mobilized and become terrorists and that's an incredibly hard piece for the fbi and others. >> and you're speaking, mike chertoff, did the fbi miss something? they were on hi...

July, and the russians have told the fbi that they were a little worried about him. but what was he doing during all that time in russia? his father says he was visiting him, that he went to see his family, went to renew his russian passport while he was awaiting american citizenship. he was here as a lawful resident. did he -- the thing i think that's the biggest question for investigators now is, "a," why did he turn this way? but, "b," where did he get his expertise in explosives? where did he practice them? it seems really unlikely these two bombs successfully were detonated without some p...